31002020002 has 8 divisors (see below), whose sum is σ = 46539110700. Its totient is φ = 15488983104.

The previous prime is 31002019973. The next prime is 31002020011. The reversal of 31002020002 is 20002020013.

It can be written as a sum of positive squares in 2 ways, for example, as 24686380161 + 6315639841 = 157119^2 + 79471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31002020002² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6010227 + ... + 6015382.

Almost surely, 2^31002020002 is an apocalyptic number.

31002020002 is a deficient number, since it is larger than the sum of its proper divisors (15537090698).

31002020002 is a wasteful number, since it uses less digits than its factorization.

31002020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026900.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 31002020002 its reverse (20002020013), we get a palindrome (51004040015).

The spelling of 31002020002 in words is "thirty-one billion, two million, twenty thousand, two".